al.'s study and Becker-Weidman's first study (published after the main Report) were examined in the Task Force's November 2006 Reply to Letters and were criticized as to their methodology. Becker-Weidman's study was described by the Task Force as "an important first step toward learning the facts about DDP outcomes" but falling far short of the criteria necessary to constitute an evidence base. Some studies are still being undertaken on coercive therapies. A non-randomized, before-and-after 2006 pilot study by Welch (the progenitor of "holding time") et al. on Welch's "prolonged parent-child embrace therapy" was conducted on children with a range of diagnoses for behavioral disorders and claimed to show significant improvement. In March 2007, attachment therapy was placed on a list of treatments that have the potential to cause harm to clients in the APS journal, Perspectives on Psychological Science. Concern was expressed about methods that involve holding and restraint, and the lack of randomized, controlled experiments showing the effectiveness of the treatment. In 2010 a modest social work study and "invitation to a debate", based on interviews with the deliverers and recipients of a therapeutic intervention incorporating non-coercive holding at one centre in the UK, called for further consideration of the use of this type of intervention. The intervention was not described as "holding therapy" but as using a degree of holding in the course of therapy. Although recipients were generally positive about the therapy received, the holding aspect was the least liked. The authors call for research and a debate on issues of what constitutes "coercion" and the distinctions between the different variants of "holding" in therapy. Cases of harm and death There have been a number of cases of serious harm to children, all adopted, while using the therapy. An estimated six children have died as a consequence of the more coercive forms of such treatments or the application of the accompanying parenting techniques. Andrea Swenson, 1990; a 13-year-old adopted girl undergoing attachment therapy at The Attachment Center, Evergreen, Colorado. She was placed with "therapeutic foster parents". When the insurance company refused to continue to pay for her treatment, the adoptive parents were asked to allow the foster parents to adopt Andrea so that a fresh claim could be made. Andrea, having asked her foster parents what would happen if she took an overdose of drugs or slit her wrist, and been told she would die, took an